department of computer science and engineering iit delhi

... NS­2 Tutorial Kameswari Chebrolu Dept. of Computer Science and Engineering,  IIT Bombay Motivation for Simulations ● Cheap ­­  does not require costly equipment ... NS is an object oriented discrete­event simulator – – ● Simulator maintains list of events and executes one event after  another Single thread of control: no locking or race conditions Back end is C++ event scheduler ... ● Repeatability helps aid debugging Disadvantages: Real systems too complex to  model Features of NS­2 ● Protocols: TCP, UDP, HTTP, Routing algorithms,  MAC etc ● Traffic Models: CBR, VBR, Web etc

Ngày tải lên: 16/03/2014, 17:20

... Questions Question 5 Imagine we have an empty stack of integers S, and two empty queues of integer Q1 and Q2 What would be the value of queues Q1, Q2, and stack S, after the following segment? 1: Enqueue ... front and rear keep positions of the first and the last elements of the queue respectively Their values are -1 when the queue is empty Example 4 Followings are algorithms of insert, remove and ... returns the number of elements in the list, and retrieve(valpos<int>, ref dataOut<data>), which retrieves the data field of the element at the position pos in the list and assigns that

Ngày tải lên: 28/03/2014, 15:20

... Pitch Black, thần ngủ Sandman mắc bẫy và bị giết chết Vô cùng đau buồn trước cái chết của Sandman, Jack Frost cùng những chú thỏ tập hợp những quả trứng phục sinh để cứu Sandman sống lại Mã sự ... trị mdiff nhỏ hơn ngưỡng quy định M mới có thể giúp Sandman sống lại Những quả trứng này sẽ được lấy ra khỏi hàng trứng và giúp hổi sinh Sandman Trang 10Hai quả trứng {100,100,100} và {100,110,100} ... khi họ còn là những đứa trẻ Năm vệ thần được chọn gồm có Tooth Fairy, Santa Claus, Easter Bunny, Sandman và nay là Jack Frost Từ đó, Pitch Black đã bị đẩy lùi vào bóng tối dưới gầm giường Nhưng

Ngày tải lên: 21/09/2022, 10:36

... *Banting and Best Department of Medical Research, Centre for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, Ontario, Canada M5S 3E1 †Department of Molecular and ... for Cellular and Biomolecular Research, University of Toronto, 160 College Street, Toronto, Ontario, Canada M5S 3E1 ‡Department of Electrical and Computer Engineering, University of Toronto, 40 ... nature of the 'code' that underlies the regulation and coordination of cell and tissue type specific AS events In the present study, we used a new microarray to profile AS levels for thousands of

Ngày tải lên: 14/08/2014, 07:21

... ADMINISTRATION AND ENGINEERING AT THE MUNICH UNIVERSITY OF APPLIED SCIENCES! “Industrial engineers are the most in demand of all university graduates – both at the start of their careers and in the ... BACHELOR PROGRAMMES Bachelor of Engineering – Business Administration and Engineering (BEng) Bachelor of Engineering – Logistics Management (BEng) Bachelor of Engineering – Automotive Industry ... Drive Engineering Prof Dr Ing Olav HINZ Computer Science, Information Technology Prof Dr Ing Eckhard HOFFMANN Technical Mechanics, Machine Elements, Development and Construction Prof Dr Ing

Ngày tải lên: 16/03/2014, 03:20

... of the causes and effects of acidic deposition and a comparison of the costs and effectiveness of alternative emission control scenarios Since adverse effects of acid rain on fish have been of ... regions of the United States, 4 percent of the lakes and 8 percent of the streams are chronically acidic Florida has the highest per-centage of acidic surface waters (23 percent of the lakes and ... varied, and thus the methods and the chemical parameters being mea-sured have varied greatly The surge of interest in the 1980s in the acidity levels of rain and snow was strongly stimulated by Scandinavian

Ngày tải lên: 10/08/2014, 20:20

... The first term on the right-hand side represents the rate of formation of particles of volume v due to coagulation, and the second term that rate of loss of particles of volume v by coagulation ... where Dp and s are, respectively, the mean and standard devi-ation of the distribution The mean diameter D pis defined by d and the standard deviation, indicating the dispersion of the distribution, ... respectively, which are the functions of u, l, D p and m The index of refraction m of a particle is given by the inverse of the ratio of the propagation speed of light in a vacuum k 0 to that

Ngày tải lên: 10/08/2014, 20:20

... engines and tailpipes; gasoline stations; the use of solvents, paints, and lacquers; and a variety of industrial operations Thus, the control of ozone is complicated by the variety of sources and ... PO  (HbCO) and (HbO2) are the concentrations of carboxyhemo-globin and oxyhemocarboxyhemo-globin, and PCO and PO2 are the partial pressures of carbon monoxide and oxygen Inspiration of air containing ... daily and short-term patterns of the ambient concentrations, identification of the emitting sources, and design and implementation of strategies for their control A detailed inventory of the

Ngày tải lên: 10/08/2014, 20:20

... function of time of day, over city and country 100-T, (%) 50 40 30 20 10 Time of day 15 20 FIGURE Concentrations of air pollution (100-T%), as function of time of day, on clear day (solid line) and ... later, and requires a fairly sophisticated handling of meteorological data The same models then also help in planning future growth of housing and industry Of course, not all problems of air ... importance of heat convection and mechanical turbulence is often characterized by the Richardson number, Ri Actually, –Ri is a measure of the relative rate of production of convective and mechanical

Ngày tải lên: 10/08/2014, 20:20

... devel-opment of community living, as well as with the growth of affluence and living standards in industrial societies These activities include the burning of fuel for heat and power, the processing of ... pollutants) and natural components of the atmosphere Some of these reactions require the ence of sunlight and are called photo-chemical reactions An example of such a reaction is the formation of ozone ... decomposition of chlorofluorocarbons (CFCs) used as a refrigerant and propellant in consumer goods, the liquifaction of chlorine cell gas, the loading and cleaning of tank cars, barges and cylinders,

Ngày tải lên: 10/08/2014, 20:20

... effects on stratospheric ozone, the sources and fates of toxic chemicals in the atmosphere, and urban and regional haze issues and the presence and effects of fine particulate matter in the atmosphere ... reaction mecha-nism Because of the large number of important reactions that take place in the atmosphere, the rapid rates of many of them, and the low concentrations of most of the reactants, the experimental ... (VOCs) due to photolysis and reaction with OH and NO 3 radicals and ozone (Seinfeld and Pandis, 1998) All of the processes identified in the table lead to the formation of organic peroxy radicals

Ngày tải lên: 10/08/2014, 20:20

... of tox-ic organtox-ics is the development of genettox-ically engineered microorganisms Knowledge of the physiology and biochem-istry of microorganisms and development of appropriate process engineering ... description of the process and the deriving reactor engineering equations and strategies for treatment of conventional and toxic pollutants are essential for proper design and operation of biological ... primarily of bacteria, protozoa, and fungi, coats the surface of filter media The activity in biological film is aerobic, with move-ment of oxygen, food and end-products in and out of it as shown

Ngày tải lên: 10/08/2014, 20:20

... codes and regulations Sizes and complexity of official health agencies range from two or three persons in a town or village to major departments of states and territories, or the national U.S Department ... numbers of crimes solved and the convictions that result Social health indices would include the numbers of persons on public welfare or assistance, and the numbers and rates of out-of-wedlock ... about the value of any one system in these two fields, but a federal office has been created in the Department of Health and Human Services (DHHS) to study and evaluate efficacy and safety in complementary

Ngày tải lên: 10/08/2014, 20:20

... trollable happening of nature wherever and however found. In the Bible “good land” is described as one “of brooks of water, of fountains, and depths that spring out of valleys and hills,” for ... the hour of the day, the day of the year, and the clarity of the atmosphere for a given location, as well as of the latitude of the earth at the point of observation. These limitations of the ... [...]... the minimization of the amounts of thermal or mechanical energy and of the amount of equipment and, hence, the amounts of materials used Quite often, in such optimization

Ngày tải lên: 10/08/2014, 20:20

... sterilization of surgical catgut (although this method is now little used) and is nowadays used for the disinfection of drinking and swimming pool water, the disin-fection of instruments and of clinical ... cultures of different identity, whether obtained different species, or consisting of spores and vegetative cells of the same species, can be shown to yield this type of response The first part of the ... The testing of disinfectants is a topic with a long history of controversy Differing opinions on the merits and relevance of various methods are legion, and have been the cause of many heated

Ngày tải lên: 10/08/2014, 20:20

... saprotrophs—bacteria and fungi of decay The metabolism of the system runs on sun energy, while the rate of metabolism and relative stability of the pond depend on the rate of inflow of materials from rain and ... groups of organisms Thus ecology is a basic division of biology and, as such, as also an integral part of any and all of the taxonomic divisions Both approaches are profitable It is often very ... have definite knowledge of his environment, i.e., of the forces of nature and of the plants and animals around him Civilization, in fact, began when man learned to use fire and other tools to modify

Ngày tải lên: 10/08/2014, 20:20

... Wiley-Interscience, New York, 1972 Ferrand, E.F., Effects of Air Pollutants, The Encyclopedia of Environmental Science and Engineering, 4th Ed., Gordon and Breach Science Publishers, New ... phosphate, sodium propionate, and sulfur dioxide. Of special interest is the use of sulfur dioxide for inhibition of mold and discol- oration in wine. Sulfur dioxide is, of course, a prominent air ... propyl, octyl and dodecyl gallates, and tocopherols. Antioxidant effect of a substance can often be increased by addition of a second material, producing a synergistic reac- tion and allowing

Ngày tải lên: 10/08/2014, 20:20

... including uneven distribution of the gas and dust as they enter the precipitator, uneven build up of ash on the wires and plates, mechanical misalignment of the wires or plates and the fact that the ... siding (and to provide a roof) for the fol-lowing reasons: 1) To eliminate the need to weatherproof the flue and equipment insulaton 2) To eliminate wind loading on the large exposed surfaces of ... assembly) were 7 /8 in diameter, and were made of M-50 steel as were the top and bottom assembly plates The ball bearing retainer was made of stainless steel The reaction of the G4 girder at Column

Ngày tải lên: 10/08/2014, 20:20

... direct line of drainage from sources of pollution Concrete Mix one bag of cement, 2 cu ft of sand, and 3 cu ft of gravel Then add 5 gal of water, for moist sand, and mix again ... control of, aquatic and terrestrial plants, and vectors; federal, state, and local programs; and effects of water, recreation, housing, and other land resource development. n) Natural and manmade ... performance, and to the preservation of comfort and enjoyment of living today and in the future. 2,3 The environment is defi ned as the sum of all external infl u- ences and conditions affecting life and

Ngày tải lên: 10/08/2014, 20:20

... method” of standardization makes use of a standardized set of mortality rates by age group, and these rates are applied, age by age, to each of the subpopulations, providing thereby a total of ... Gordon and Breach Science Publishers,... excess of cases of the disease REGRESSION AND CORRELATION ANALYSIS The relationship between the incidence of lung cancer and the number of ... age, and cause; for geographical and other subgroups; and in calendar time Some of the methods of comparison we have... OTHER APPLICATIONS OF EPIDEMIOLOGY REFERENCES The methods of

Ngày tải lên: 10/08/2014, 20:20